diff --git a/index.html b/index.html
index e11cee62..9e31309e 100644
--- a/index.html
+++ b/index.html
@@ -7,6 +7,7 @@
   <meta name="keywords" content="设计数据密集型应用"/>
   <meta name="description" content="A magical documentation generator." />
   <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"/>
+  <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/katex@latest/dist/katex.min.css"/>
   <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify@4/lib/themes/vue.css" title="vue"/>
   <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify@4/lib/themes/dark.css" title="dark" disabled/>
   <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify@4/lib/themes/buble.css" title="buble" disabled/>
@@ -55,6 +56,7 @@
     }
   };
 </script>
+<script src="//cdn.jsdelivr.net/npm/docsify-katex@latest/dist/docsify-katex.js"></script>
 <script src="//cdn.jsdelivr.net/npm/docsify@4/lib/docsify.min.js"></script>
 <script src="//cdn.jsdelivr.net/npm/docsify@4/lib/plugins/search.min.js"></script>
 <script src="//cdn.jsdelivr.net/npm/prismjs@1/components/prism-bash.min.js"></script>